This is an HTML version of an attachment to the Freedom of Information request
'Retrofit for the Future'.
The Challenge of Housing Refurbishment in Northern Ireland Dr John McPeake Director of Design & Property Services NIHE Background
• Government has established targets
– 60% reduction in CO by 2050 2
– 20% electricity supply from renewables by 2020
• Housing has key part to play
– About 30% UK’s CO emissions are from housing 2
– New housing to be “carbon neutral” by 2016 (Code 6 CSH)
– But, existing stock is where problems (and opportunities) are greatest
– 2/3 of the housing present in 2050 are here now The NI Housing Stock (2006 HCS)
(000’s)
• 705,000 dwellings 600
– Most are owner 500 occupied (70%) 400
– But one sixth are 300 social rented (17%) 200
• NIHE – 97,000 • HA – 23,000 100
• Our focus is the 0 OO PR N HA social stock IHE The social stock …
• is younger than the private stock
– is mostly post ww2 (92% compared to 70%) – strongly over-represented in the 1965-1980 category (36% compared to 21%)
• and it has a different type profile
– terraced types (45% compared to 29%) – flats (26% compared to 4%).
• But there are important differences between NIHE & HA stock The Social Rented Stock Dwelling Age Dwelling Type
%
% 100 60 80 50 40 60 30 40 20 20 10 0 0 Pre ww2 45-64 65-80 Post 80 Bungalow Terraced Semi-D Flat NIHE HA NIHE HA Social Housing & Energy Performance
• Generally
– Social housing outperforms the private sector
– SAP averages 61 compared to 50
• But, again, big differences
– according to age & dwelling type – between NIHE & housing associations Variations in SAP Rating Retrofitting is important but…
• Physical issues associated with the stock are only part (a big part) of the equation
• Lifestyle and behaviour are also important
– Average household domestic energy use 1971-2001 up 36% but
• Water heating (-13%) & cooking (-54%) DOWN • Space heating (+11%) & lighting / appliances / consumer electronics (+67%) UP
– TV is one of the biggest offenders – And don’t think social tenants don’t own many consumer durables / electronics; THEY DO Concluding comments
• Issues with retrofitting
– Working in an existing, occupied stock – Are limitations to what can be achieved – Costs in retrofit often greater than new build – Uncertainty about future maintainability (new build also)
• But potential benefits are significant
– Make a positive environmental impact – Help reduce running costs for tenants – Help reduce fuel poverty